Window operator



March 22, 1960 F. J. MARTIN 2,929,264

wmnow OPERATOR Filed April 14, 1958 2 Sheets-Sheet 1 FIG.1

INVENTOR. FRANK J. MARTIN jMQW ATTORNEY March 22, 1960 F. J. MARTIN 2,929,264

WINDQW OPERATOR Filed April 14, 1958 2 Sheets-Sheet 2 INVENTOR. FRANK JMARTIN ATTORNEY nited States Patent Casting Corporation, Hialeah, Fla, a corporation of Florida Application April 14, 1958, Serial No. 728,164

2 Claims. (Cl. 74-507) This invention relates to window structures and is more particularly directed to window operators.

In the manufacture of the present window operators the sector gear is blanked out by a punch press operation from a sheet of metal with an arcuate lever arm attached thereto as a unit. One of the disadvantages of this manner of producing sector gears is the large amount of waste incurred amounting to as much as 75%. A further disadvantage is the resulting poor fit of the sector-gear in the housing since the thickness of sheet metal varies more than the tolerance permitted by a proper fit of the sector gear in its housing.

Therefore, the present invention contemplates the manufacture of the sector gear and operator arm in two parts which are swedged together to form'a singleoperator arm and sector gear device. The operator arm is produced by a die cast operation so that there is no waste in metal. The operatorarm is provided with a hub portion upon which the sector gear is mounted, which hub portion is accurately dimensioned to fit in the housing. The sector gear is blanked out by a punch press operation as the waste of metal hereby is very small so that the waste incurred presently is reduced considerably.

A principal object of the present invention is to provide a Window operator which consists of an operator arm and a sector gear swedged together to form anaccurately dimensioned device which consequently operates easily and efficiently.

Another object of the present invention is to provide an operator for jalousie windows which-is economical in cost of manufacture and assembly with the parts thereof interchangeable thereby not requiring the expensive hand operation to effect the proper fitting together of the various parts.

Another object of the present invention is to provide a window operator with a combination operator arm and sector gear wherein the operator arm is die cast while the sector gear is stamped from a sheet of metal thereby reducing more than 50% of the waste of metal by the present stamping process.

With these and other objects in view, the invention will be best understood from a consideration of the following detailed description taken in connection with the accompanying drawings forming a part of this specification, with the understanding, however, that the invention is not confined to any strict conformity with the showing of the drawings but may be'changed or modified so long as such changes or modifications mark no material departure from the salient features of the invention as expressed in the appended claims.

In the drawings:

Figure 1 is a fragmentary perspective view of a jalousie window showing my operator.

Figure 2 is a longitudinal sectional view taken along the line 22 of Figure 1.

Figure 3 is a longitudinal sectional view of the operator.

Figure 4 is a tranverse sectional view taken along the line 44 of Figure 3.

Figure 5 is a front elevational view of a combination sector gear and lever armstructure as seen removed from the operator housing.

Figure 6 is a side elevational view thereof.

Figure 7 is a cross sectional view taken along the line 77 of Figure 5.

Figure 8 is an exploded view of the sector gear'and lever arm prior to their assembly.

Referring to the drawings wherein like numerals are used to designate similar parts throughout the several views, the numeral 10 refers to a conventional jalousie window consisting of a pair of laterally spaced jambs 11; 11 on one of which there is mounted my operator 12. The operator 12 serves to open and close the tier of horizontally disposed louvers 13 whoseen'ds are received by pivot clips 14 pivotally mounted on the jambs 11 as at 15; Pivot clips 14 are each provided with a lever arm l6-whose free ends are pivotally secured as at 17 to slide bars 18 each of which is vertically positioned adjacent the inside wall of the jambs 11. The s'ide bar 18 which is mounted alongside the jamb 11 whereon the operator 12 v is positioned has a link 19 pivotally secured as at 20 at its upper end in proximity of the lower portion of the slide bar'18. The lower end of the link 19 is pivoted as at 21 to the free end of an operator arm 22 of the operator 12.

- The operator 12 comprises a housing 25 having an open chamber 26 formed by a pair of spaced apart side walls 27 and 28 and an arcuate end wall 29 with an opening 30 through which the operator arm 22 and a sector gear 31 extend as is explained in greater detail hereinafter; A shaft receiving boss 23 is positioned at the lower portion of the housing 25 extending diagonally of the side Wall 27 and is provided with a bore 24 which communicates with the chamber 26. The inner surfaces of the side walls 27 and 28 are raised or embossed as at 32 and 33 at the position of a bore 34 which extends through both of the side walls 27 and 28. The function of the raised portions 32 and 33 is to provide bearing surfaces for the combination operator arm 22 and sector gear 31 which are rotatably mounted on a pin 35 extending through the bores 34 of the operator housing 25 and a bore 36 in the operator arm 22.

As will be explained in greater detail hereinafter, it has been found advantageous to construct the sector gear device in two parts namely, the operator arm 22 and the sector gear 31. The operator arm 22 has an arcuate arm portion at whose upper end portion an elongated bore or slot 37 is provided for receiving the pivot pin 21 in se curing the arm 22 to the link 19. The lower end portion of the operator arm 22 is provided with a hub 38 through whose center the bore 36 extends. The hub 38 is further provided with a slightly raised bearing surface or boss 39 concentric with the bore 36 and smaller in diameter than that of the hub 38. In spaced relation to the hub 38 is a shoulder 40 mounted on the operator arm 22 adapted to be received by an open ended slot 42 on the periphery of the disk shaped sector gear 31 for locking the gear 31 against rotational movement when placed in position on the operator arm 22. The sector gear 31 is provided with a bore 48 which fits snugly on the hub 38. The re mainder of the periphery of the sector gear 31 is provided with teeth 43 as desired which teeth 43 are in mesh engagement with a worm gear 44 mounted on a shaft 45 which extends through the bore 24 in the shaft receiving boss 23. The shaft 45 which is secured to a handle 46 is rotatably secured in the boss 23 by a bearing 51 threadedly received in the bore 24. A shoulder 47 on the shaft 45 prevents displacement of the worm 44 upon rotation of the handle 46.

In the manufacture of the combination operator arm 22 and sector gear 31, the operator arm 22 is produced by a die-casting operation while the sector gear 31 is punch pressed or blanked out from a sheet of metal of desired thickness and the teeth 43 machined. Then, the sector gear 31 is placed in position on the operator arm 22 with the shoulder 40 fitted inthe slot 42 and the hub 38 being received by the bore 36. The two parts namely the sector gear 31 and the hub 38 are swedged together by a circular tool which strikes the boss 39 of the hub 38 to produce an indentation 50 in the boss 39 and cause the pcripheral metal on the hub 38 to overlap the inner edge of the sector gear 31 and thereby lock the members 22, 31 together. The sector gear 31 is inserted through the opening 30 and positioned in the chamber 26 of the housing 25 with the boss 39 of the hub 38 in contact relation with the boss 33 on the inner'surface of the side wall 27 of the housing 25. Since the housing 25 and the operator arm 22 are produced by a die casting method, the toler ances are small and these dimensionswill be extremely accurate. Therefore, the combination sector gear 31 and operator arm 22 will fit properly therein without the necessity of having to resort to manual labor to effect a proper fit. The hub portion 38, 39 must slide easily into the chamber 28 between the bosses 32 and 33, yet must be in contact therewith neither too loosely or too tightly so that upon the actuation of the operator handle 46 there will be no wobbling of the operator arm 22 and the sector gear 31 nor any binding with the housing 25. The pin 35 is then inserted through the bores 34, 36 and secured to the housing walls 27, 28. The worm gear 44 and housing 45 are then inserted in the bore 24 of the boss 23 and locked therein with the worm gear 4-1 in mesh engagement with the teeth 43 of'the sector gear31 by the lock bushing 51. The handle 46 is secured on the shaft 45 to complete the operator 12. The operator 12 is then secured onto the jarnb 12 of the window 10 by the screws 49, 49 in the conventional manner with the operator arm 22 extending inwardly of the jamb 11' and pivotally secured as at 21 to the lower end of the link 19. Now actuation of the operator handle 46 slides the opera tor slide bar upwardly and downwardly to efiect an opening and closing of the louvers 13.

What I claim as new is:

1. In an operator for windows having a housing, a combination operator arm and sector gear comprising an arcuate arm portion, a hub portion mounted on-one end of said arcuate arm portion, said hub portion having a substantially. concentrically disposed bore and a raised bearing surface, a shoulder mounted on said arcuate arm portion in spaced relation to said hub portion, a disk mounted on said arm portion and having a bore receiving said hub portion and a peripheral slot for receiving said shoulder, and a plurality .of. teeth mounted on the periphery of said disk, said hub being thicker than said disk whereby said diskmay be secured to said hub upon swedging said hub adjacent said disk. I

2. An'operato'r for windows having a housing consisting of spaced apart side walls, an' arcuate end wall closingone end of said housing, said housing having an openingat theother end, said side walls having aligned bores, raised bearing surface extending about each bore on the inside surfaces of said side walls, an arcuate arm portion, a hub portion mounted on one end of said arcuate arm portion, said hub portion having a substantially concentrically disposed bore and a raised bearing surface, a shoulder mounted on said arcuate arm portion in spaced relation tosaid hub portion,.a disk mounted on said arm portion and having a bore receiving said hub, portion and a peripheral slot for receiving said shoulder and a plurality of teeth mounted on the periphery of said disk, said hub being thicker than-said disk whereby said disk may be secured to said hub upon swedging said hub adjacent said disk, said hub mounted in said housing in contact relation with said raised bearing surfaces of said housing, a pin extending through said aligned bores in said side walls and said bore in said hub for pivotal movement of said arcuate arm portion, a worm gear rotatably mounted in said housing I in meshengagement with said teeth and handle means forrotating said worm gear.

References Cited in the file of this patent UNITED STATES PATENTS 1,040,570 Osborne Oct .,8, 1912 1,082,899 Parsons Dec. 30, 1913 1,682,205 Wassener Aug. 28, 1928 2,138,539 Flynn Nov. 29, 1938 2,214,280 Lang Sept. 10, 1940 2,635,485 Gravenstine et al. Apr. 21, 1953 2,699,232 Singleton Jan. 11, 1955 2,732,726 l-iakanson Jan. 31, 1956 1957 Rodaway June. 11, 

